ℏ PLANCK CONSTANT OVER TWO PI UTF-8 character with hex code 210F

Using HEX code of PLANCK CONSTANT OVER TWO PI in HTML file

<span> &#x210F; </span>

Using Decimal code of PLANCK CONSTANT OVER TWO PI in HTML file

<span> &#8463; </span>

Using HEX code of PLANCK CONSTANT OVER TWO PI in CSS file for content

span { 
    content: '\210f';
}